Cub Cadet SLTX1000 User Manual

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LTX Series Riding Tractors

NOTE: These materials are for use by trained technicians who are experienced in the service and repair of outd oor power equipment of the kind described in this publication, and are no t intended for use by untrained or inexperienced individu als. These materials are intended to provide supplemental information to assist the trained technician. Untrained or inexperienced individuals should seek the assistance of an experienced and trained professional. Read, understand, and follow all instructions and use common sense when working on power equipment. This includes the contents of the product’s Operators Manual, supplied with the equipment. No liability can be accepted for any inaccuracies or omission in this publication, although care has been taken to make it as complete and accurate as possible at the time of publication. However, due to the variety of outdoor power equipment and continuing product changes that occur over time, updates will be made to these instructions from time to time. Therefore, it may be necessary to obtain the latest materials before servicing or repairing a product. The company reserves the right to make changes at any time to this publication without prior notice and without incurring an obligation to make such changes to previously published versions. Instructions, photographs and illustrations used in this publication are for reference use only and may not depict actual model and component parts.

Table of Contents

Chapter 1: Introduction

Professional Shop Manual intent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Fasteners. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Description of the 900 series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Model and Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Chapter 2: Engine related parts

Muffler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Fuel tank removal/replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Fuel Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Evaporative (EVAP) emissions system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Roll over valve vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Chapter 3: Steering

Steering alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Axles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Sector gear and steering pinion gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Steering shaft and hex bushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Pivot bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Chapter 6B: Electronic Power Steering

Rubber Torsion Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

EPS Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

EPS motor & gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Troubleshooting the EPS (without the 725-05419 EPS tester) . . . . . . . . . . 27

EPS removal/replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Chapter 4: Body panels

What is covered by this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Hood components: Headlight removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Hood components: side vent removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Hood components: grill removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Hood components: pivot bracket removal . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Seat and Fenders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Dash Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Chapter 5: Hydro. Drive and brake system

About this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Externally repairable drive system problems . . . . . . . . . . . . . . . . . . . . . . . . 56

Indications that a transaxle is not warrantable . . . . . . . . . . . . . . . . . . . . . . . 61

Brake adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Neutral control adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Linkage: pedal shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Pedal shaft assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Belt control; tensioner and idler pulleys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Drive belt replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Changing transaxle hydraulic fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Transaxle removal and replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Chapter 6: CVT Drive and brake system

About this chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

About the variable speed drive system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Externally repairable drive system problems: . . . . . . . . . . . . . . . . . . . . . . . . 94

Indications that a transaxle is not warrantable . . . . . . . . . . . . . . . . . . . . . . . 97

Brake adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Gear selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Tensioner pulley control rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Linkage: pedal shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Pedal shaft assembly removal: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Linkage: pedal tie strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Belt control: tension make-up pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Belt control: variable speed pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Belt control: tensioner pulleys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Drive belt replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Transaxle removal and replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

Transaxle repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Chapter 7: electrical system

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

RMC Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Key switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

RMC Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

RMC module plug test (electric PTO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

RMC module plug test (manual PTO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

Electric PTO switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

PTO relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

PTO switch (manual PTO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

Brake switch (manual PTO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Brake switch (electric PTO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Park brake switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Reverse Safety Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Seat Safety Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Starter solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156

Start Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Run Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Run Circuit / Reverse Caution mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

Engine shutdown circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

Charging circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

PTO Circuit (electric PTO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Reverse Mower Control (RMC) circuit operation . . . . . . . . . . . . . . . . . . . . 170

Electrical diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Electrical environment: AC Vs. DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

Ohm’s Law . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Kirchhoff’s Current Law . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174

Kirchhoff’s Voltage Law . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

How the system is wired together . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

Types of circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

Parallel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

Series/parallel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Shorts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Opens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

Increased resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

The Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178

Digital multimeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Wiring diagram or schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

Fused jumper wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

Test lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

Self-powered continuity lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180

Ammeters and specialized charging system testers . . . . . . . . . . . . . . . . . 181

Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

Charging the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

Checking battery condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Battery Testers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Adjustable load testers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184

Fixed load testers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

Conductance testers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

Battery discharge test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Storage of batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Electrical Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

Voltage Drop Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Testing switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

Diodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195

Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196

III

Chapter 8: Cutting Decks and lift shaft

Cutting decks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Deck removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

Cleaning the deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204

To clean the deck while it is removed:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204

Blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205

Spindles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

PTO belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

Timing belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Leveling the deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Side to Side Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Front To Rear Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216

Deck Wheel Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

Deck lift shaft assembly bushings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

Deck lift shaft assembly removal/replacement . . . . . . . . . . . . . . . . . . . . . . 218

Deck lift links and cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

Engine maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

Chapter 9: Maintenance intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

The spark plug(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

Air filter and foam pre-cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Oil change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226

Fuel system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

Servicing the fuel system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

Fuel filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

Clean the engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

Lubricate the pedal shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

Hydro-gear Appendix

Introduction

CHAPTER 1: INTRODUCTION

Professional Shop Manual intent

This Manual is intended to provide service dealers with an introduction to the mechanical aspects of the LTX

series of tractors.

• Detailed service information about the engine will be provided by the engine manufacturer, in most cases.

Disclaimer: The information contained in this manual is correct at the time of writin g. Both the prod u ct an d th e inf or mation about the product are subject to change without notice.

About the text format:

NOTE: is used to point out information that is relevant to the procedure, but does not fit as a step in the pr oce dure.

• Bullet points: indicate sub-steps or points.

! CA UTION! CA UTION

! WA RNIN G! WA RNIN G

! DANGER! DANGER

Disclaimer: This manual is intended for use by trained, professional technicians.

• Common sense in operation and safety is assumed.

• In no event shall MTD or Cub Cadet be liable for poor text interpretation or poor execution of the procedures described in the text.

• If the person using this manual is uncomfortable with any procedures they encounter, they should seek the help of a qualified technician or Cub Cadet Technical Support.

Fasteners

Caution is used to point out potential danger to the technician, operator, bystanders, or surrounding property.

Warning indicates a potentially hazardous situation that, if not avoided, could result in death of serious injury.

Danger indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury. This signal word is to be limited to the most extreme situations.

• Most of the fasteners used on these mowers are sized in fractional inches. The engine and transmissions are metric. For this reason, wrench sizes are frequently identified in the text, and measurement s are given in U.S. and metric scales.

• If a fastener has a locking feature that has worn, replace the fastener or apply a small amount of re leasable thread locking compound such as Loctite® 242 (blue).

• Some fasteners like cotter pins are single-use items that are not to be reused. Other fasteners such as lock washers, retaining rings, and internal cotter pins (hairpin clips) may be reused if they do not show signs of wear or damage. This manual leaves that decision to the judgement of the technician.

LTX Tractors

! CAUTION! CAUTION

• Be prepared in case of emergency: Keep a fire extinguisher nearby Keep a first aid kit nearby Keep emergency contact numbers handy

• Replace any missing or damaged safety labels on shop equipment.

• Replace any missing or damaged safety labels on equipment being serviced.

• Grooming and attire:

! WARNING! WARNING

! CAUTION! CAUTION

Do not wear loose fitting clothing that may become entangled in equipment. Long hair should be secured to prevent entanglement in equipment.

Jewelry is best removed.

• Protective gear: includes, but is not limited to

Clear eye protection ................................ while working around any machinery

Protective gloves ..................................... where necessary

Armored footwear.................................... when working around any machinery

Hearing protection ................................... in noisy environments

Chemically resistant gloves..................... when working with chemicals or solvents

Respirator................................................ when working with chemical or solvents

Appropriate tinted eye protection............. when cutting or welding

Flame resistant headgear, jacket, chaps. when cutting or welding

• Remember that some hazards have a cumulative effect. A single exposure may cause little or no harm, but continual or repeated exposure may cause very serious harm.

• Clean spills and fix obviously dangerous conditions as soon as they are noticed.

! DANGER! DANGER

• Lift and support heavy objects safely and securely.

• Be aware of your surroundings and potential hazards that are inherent to all power equipment. All the labels in the world cannot protect a technician from an instant of carelessness.

• Exhaust fumes from running engines contain carbon monoxide (CO). Carbon

monoxide is a colorless odorless gas that is fatal if inhaled in sufficient quantity. Only run engines in well ventilated areas. If running engines indoors, use an exhaust evacuation system with adequate make-up air ventilated into the shop.

Introduction

Assembly

Torque specifications may be noted in the part of the text that covers assembly, they may also be summarized in tables along with special instructions regarding locking or lubrication. Whichever method is more appropriate will be used. In many cases, both will be used so that the manual is handy as a quick-reference guide as well as a step-bystep procedure guide that does not require the user to hunt for information.

The level of assembly instructions provided will be determined by the complexity of disassembly/reassembly, and by the potential for unsafe conditions to arise from mistakes made in assembly.

Some instructions may refer to other parts of the manual for subsidiary procedures. This avoids repeating the same procedure two or three times in the manual.

Description of the 900 series

The 900 series is a new tractor platform intr oduced in the 2009 season. This plat form replaces the traditional 600 series tractor.

New for the 900 series is:

• New stronger frame

See Figure 1.1.

Figure 1.1

• New hood and grill designs

• A new 42” timed deck

• A new 2 blade 46” deck

• Tighter turning radius

LTX Tractors

Model and Serial Numbers

The model and serial number tag can be found under

the seat.

number as shown above.

The model number is 13AX90AR010 The break down of what the character mean is as follows:

See Figure 1.2.

The serial number is located to the right of the model

See Figure 1.2.

Model number

Figure 1.2

Serial number

1 ..............................................................................................Cuts grass

....3 ..........................................................................................Lawn tractor

.......A....................................................................................... Sales level/type of create

...........X............................ ... ... ... .... ... ... ... .... ............................. Engine code

.............9. ................................................................................Frame

.................0 ......................................... ... .... ... ... .......................Drive system

....................A.......................................................................... Hood style

.........................R.....................................................................Deck (S = 42”, T = 46”, P=50”, R=42” timed deck)

.............................056 ............................................................. Customer number

The serial number is 1J078H30003. The serial number reads as follows:

1 ..............................................................................................Engineering level

..J............................................................................................. Month of production (J = October)

.....07 .......................................................................................Day of the month

.........8 .....................................................................................Last digit of the year

...........H............................................................ ... .... ... .............Plant it was built in (Martin, TN)

..............3 ................................................................................Assembly line number

.................0003 ....................................................................... Build number of unit

CHAPTER 2: ENGINE RELATED PARTS

This manual will cover the engine accessories that are manufactured by Cub Cadet.

IMPORTANT: Refer to the engine manufacturer’s manual for engine specific service information.

Muffler

Remove the muffler by following these steps: NOTE: The muffler and the exhaust pipes are welded

together . They are replaced as one assembly.

1. Remove the hood and bumper by following the steps described in Chapter 4: Body/Chassis.

2. Remove the two screws on each side that secure th e muffler guard bracket.

Screws

See Figure 2.1.

Engine Ralated Parts

Figure 2.1

Screws

Figure 2.2

3. Disconnect the muffler from the engine:

For single cylinder engines:

• Remove the two screws that secure the exhaust

pipe to the cylinder head.

See Figure 2.2.

LTX Tractors

• Remove the screw that fastens the muffler support bracket to the cylinder head. See Figure 2.3.

For twin cylinder engines:

Screw

Support bracket

Figure 2.3

• Remove the two nuts that secure each exhaust pipe to the cylinder head. See Figure 2.4.

Nuts

Figure 2.4

Figure 2.5

Engine Ralated Parts

4. Pull the muffler cover and muffler out together.

5. Rotate the muffler out of the muffler cover. See Figure 2.5.

6. With the muffler on a work bench, remove the four screws that hold the muffler deflector to the muffler. See Figure 2.6.

Screws

Figure 2.6

7. Install the muffler by following the above steps in reverse order.

8. Test run the tractor before returning to service.

Muffler deflector

LTX Tractors

Fuel tank removal/replacement

Remove/replace the fuel tank by following these steps:

Gasoline and its vapors are extremely flammable. Use common sense when working around

! CAUTION! CAUTION

• Work in a well-ventilated area.

• Allow the engine to cool fully before starting work on the tractor.

• Eliminate any sources of possible ignition from the work area, including but not limited to: heat sources, open flame, potential sparks.

• Clean-up any spilled fuel quickly and properly, disposing of cleaning materials in a way that will not produce a further fire hazard.

• Hold any drained fuel in an approved and safe container.

1. Open the hood.

2. Drain the fuel in the fuel tank into an approved container.

the fuel system.

NOTE: The tank may be drained by mechanical

syphon or by disconnecting the fuel line from the fuel filter.

3. Disconnect the fuel tank vent hose from the roll over valve (if equipped).

4. Remove the four screws that secure the fuel tank support rod.

5. Work the fuel tank support bracket off of the tractor

6. Slide the fuel tank out from between the dash and the engine.

7. Remove the fuel line clamp and slide the fuel line off of the fuel tank nipple. NOTE: The fuel tank has a barbed fitting. Anytime a fuel line is removed from a barbed fitting it should be

8. Install the fuel tank by following the above steps in reverse order.

9. Test run the tractor and check for leaks before returning to service.

See Figure 2.7.

replaced because of the damage caused to the fuel line liner.

Screws

Figure 2.7

Fuel Line

Engine Ralated Parts

CSM Cover

Picture courtesy of Avon Automotive

NBR intermediate layer

Reinforcement

Figure 2.8

THV barrier layer

NBR inner liner

The fuel line used by Cub Cadet is GREENbarTM. This is a multi-layer fuel line that meets the current EPA guidelines.

NOTE: This fuel line has a thin inner liner. If a tear forms in

this inner liner, fuel can get between the liner and the hose. This will cause the liner to collapse, cut ting off the fuel flow.

NOTE: Replace the fuel line only with GREENbarTM 700

series fuel line.

LTX Tractors

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#HARCOAL CANISTER

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Evaporative (EVAP) emissions system

The EPA has enacted rules that regulate the amount of vapors an engine’s fuel system is allowed to vent to the atmosphere. The rules are know as Tier III Emissions Standards. These rules apply to all engines built on or after 1/ 1/2012. Some of the requirements of tier III emissions include:

• Tethered fuel caps.

• Unvented fuel caps.

• Low permeation (GREENbar

• Roll over valve vents

The fuel tank has an unvented fuel cap. The fuel tank vents through the roll over valve. The vapors will flow through the vent hose (black hose with a red trace) to the engine.

connector, is a Cub Cadet system, meaning warranty and parts are handled by Cub Cadet.

facturer, but on most engines the vent hose will go to the air intake manifold.

See Figure 2.9.

The EVAP system, from the fuel tank up to the engine

The engine side of the system varies by engine manu-

) fuel line

Roll over valve

49 state fuel system

Figure 2.9

Fuel cap

Fuel tank

NOTE: Units sold in California will have a charcoal

canister to further reduce the amount of emissions that escape from the fuel system.

The fuel tank will vent through the charcoal canister. The charcoal in the canister will act as a filter and remove some of the vapors that are venting out of the fuel tank.

A second vent hose connects the canister to the engine. As the engine runs, the vacuum in the intake manifold will draw the vapors out of the charcoal, recharging it. See Figure 2.10.

NOTE: A leak in the vent hose will allow dirt injec-

tion into the engine. This will not affect engine performance until the dirt ingestion has cause damage inside the engine.

Fuel tank

California fuel system

Figure 2.10

Engine Ralated Parts

T roubleshooting

Symptom Cause

Engine starts, then dies A blockage in the vent hose.

The roll over valve is stuck closed.

Engine runs rich Raw gasoline in the charcoal canister (if equipped).

A blockage in the line between the charcoal canister (if equipped) and the intake manifold.

Engine runs lean Wrong fuel cap installed.

Leak in the vacuum lines.

Gasoline vapor escaping from the engine

The charcoal canister (if equipped) is saturated. A blockage in the line between the charcoal canister (if

equipped) and the intake manifold. Wrong fuel cap installed. Leak in the vacuum lines.

LTX Tractors

Roll over valve vent

To remove the roll over valve:

1. Open the hood.

2. Disconnect the vent hose. See Figure 2.11.

NOTE: The vent hose will have a red trace.

3. Gently pry the roll over valve out of the fuel tank.

See Figure 2.12.

4. Inspect the rubber grommet, replace if damaged.

To install the roll over valve:

Vent hose

Figure 2.11

Roll over valve

1. With the grommet on the roll over valve, install the

roll over valve by pressing it into the opening in the tank.

2. Attach the vent hose to the roll over valve.

3. Test run the engine in a safe area befo re retur nin g

to service.

Figure 2.12

Testing the roll over valve

15 in.Hg.

Figure 2.13

Engine Ralated Parts

The roll over valve vent has two functions. The first function is to vent the tank and the second function is to close off the vent if the tank is inverted.

Test the roll over valve by:

1. Remove the roll over valve by following the steps pre viously described in this section.

2. Connect a vacuum pump to the roll over valve.

3. Hold the roll over valve in an inverted position.

4. Apply a vacuum to the roll over valve. See Figure 2.13.

NOTE: The roll over valve should hold 15 in.Hg. for 15

seconds.

Zero reading

Figure 2.14

5. With the vacuum still applied, turn the roll over valve over.

See Figure 2.14.

NOTE: The vacuum should be relieved.

6. If the results do not match what is listed above, replace the roll over valve.

LTX Tractors

Steering alignment

Center the sector gear

CHAPTER 3A: STEERING

IMPORTANT: The front tires will have a “TOE-IN” between

1/16” and 1/4” to allow the unit to track properly.

1. Check the tire pressure in the front tires and make certain that they are at approximately 14 PSI. The rear tires should be at 10 PSI.

2. Place the unit on level ground.

3. Lower the deck lift lever to the lowest position.

4. Line up the centering hole in the sector gear with the centering hole in the support plate, and insert a 1/4” Phillips screw driver up through both. See Figure 3A.1.

Steering

Figure 3A.1

Measure rim-to-rim at the front and back of rim

Figure 3A.2

NOTE: The steering wheel should be in the straight for-

ward position. If it is not, remove the steering wheel and reinstall it so that it is.

5. In front of the axle, measure the distance horizont ally from the inside of the left rim to the inside of the right rim.

See Figure 3A.2.

6. From behind the axle, measure the distance horizontally from the inside of the left rim to the inside of the right rim.

7. The measurement taken in front of th e axle should be between 1/16” and 5/16” less than the measurement taken behind the axle. If not, perform the following steps:

LTX Tractors

8. Loosen the jam nut at the rear of the right ball joint that secures the ball joint to the drag link, using a 1/ 2” wrench and an 11/16” wrench.

9. Remove the hex nut and lock washer, that secures the right ball joint to the right axle assembly, using a 1/2” wrench and a 9/16 wrench.

10. Remove the right hand ball joint from the right hand drag link.

1 1. Remove the left hand ball joint performing steps 8, 9

and 10 above.

12. Place the left and right tire assemblies in the straight forward position.

13. Set the toe-in for the rim assemblies to 3/16”.

14. Thread the right hand ball joint onto the right hand drag link until the mounting hole in the right hand axle assembly lines up with the ball joint.

NOTE: Count the number of turns the ball joint was rotated onto the drag link. This number should be within a

couple of turns of the left side. If there is more than a couple turns difference, then one or both of the drag links are bent.

See Figure 3A.3.

Jam nut

Figure 3A.3

15. Secure the right hand ball joint to the right hand axle assembly with the lock washer and nut removed earlier, using a 1/2” wrench and a 9/16” socket

16. Secure the right hand ball joint jam nut to the right hand drag link using a 1/2” wrench and an 11/16” wrench.

17. Install the left hand ball joint using steps 14, 15 and 16.

Axles

Figure 3A.4

Identification mark

Steering

NOTE: The left and right axle have a “L” or a “R” stamped

on the end of the shaft for identification. See Figure 3A.4.

1. Jack up the front end of the tractor and securely place on jack stands.

2. Remove the front wheel by popping the hub cap off with a flat head screw driver.

Castellated washer

Figure 3A.5

1/2” wrench

3. Remove the cotter pin and the castellated washer. See Figure 3A.5.

NOTE: When installing the wheel, install a new cotter pin

in between the uprights of the castellated washer.

4. Remove the nut holding the drag link to the steering block using a 1/2” and 9/16” wrench. See Figure 3A.6.

Figure 3A.6

9/16” wrench

LTX Tractors

5. Support the axle and remove the steering block using two 1/2” wrenches.

NOTE: The SLT models do not have a spacer.

See Figure 3A.7.

Steering block

Spacer

Figure 3A.7

6. Remove the spacer and lower the axle out of the pivot bar.

NOTE: Starting in the 2010 season, some tractors

will be equipped with a stamped pivot bar. These tractors will have plastic bushing where the axle rides inside the pivot bar. See Figure 3A.8.

NOTE: The procedure to remove this axle is the

same as previously described. When install ing the axle, install new upper and lower bushings.

7. Install the axle by following the previous steps in reverse order.

8. Perform a wheel alignment by following the steps described in the steering a lignment section of this chapter.

9. Test run the tractor in a safe area before ret ur ning it to ser vice.

Bushings

Figure 3A.8

Sector gear and steering pinion gear

Steering Pinion Ge ar

Flange Lock Nut

Figure 3A.9

Remove the washer

Steering

If you are replacing the sector gear or steering pinion gear, check the condition of both gears for any wear or damage. It may be wise to replace both as a set.

1. Remove the cutting deck by following the steps described in Chapter 8: Cutting Decks and Lift Shaft

2. Jack up the front end of the tractor and securely place on jack stands.

3. Remove the flange lock nut securin g the stee ring pi nion gear to the steering shaft using an 1 1/16” socket. See Figure 3A.9.

Lift up on the steering shaft

Figure 3A.10

Remove the hex bushing

4. Slide the steering pinion gear off of the steering shaf t.

5. Lift up on the steering shaft an d remove the washer. See Figure 3A.10.

6. Push the steering shaft up through the frame of the tractor.

7. Remove the hex bushing. See Figure 3A.11.

Figure 3A.11

LTX Tractors

8. Remove the drag links from the sector gear.

9. Remove the six screws that secure the steering plate to the frame.

10. Remove the steering plate.

See Figure 3A.12.

Remove these screws on each side

Figure 3A.12

11. Remove the hex cap screw, shoulder spacer and hex nut in the middle of the sector gear using two 9/ 16” wrenches.

NOTE: Note the order the sp acers and washer were

removed so that they can be installed prop erly. See Figure 3A.14.

12. Remove the bolt that the sector gear pivots on using two 9/16” wrenches.

NOTE: When installing the sector gear, coat the

sector gear and the steering plate with a high quality lithium grease.

13. Install the steering and steering pivot gears by following the previous steps in reverse order.

See Figure 3A.13.

sector gear

Steering plate

Figure 3A.13

14. Perform a wheel alignment by following the steps described in the steering alignment section of this chapter.

15. Test run the tractor in a safe area before returning it to service.

Figure 3A.14

Steering shaft and he x bushing

Figure 3A.15

Steering

To remove the steering shaft or to replace the hex bushing:

1. Remove the cutting deck by following the steps described in Chapter 8: Cutting Decks and Lift Shaft

2. Jack up the front end of the tractor and securely place on jack stands.

3. Remove the steering wheel 3a. Remove the cover from the center of the steer-

ing wheel. See Figure 3A.15.

Figure 3A.16

Steering Pinion Ge ar

Flange Lock Nut

Alignment hole

NOTE: The cover can be released by prying-in on the

lock-tabs on the under-side of the steering wheel. See Figure 3A.16.

3b. Remove the bolt that holds the steering wheel

to the steering shaft using a 1/2” wrench.

3c. Lift the steering wheel off of the steering shaft.

4. Remove the flange lock nut securin g the stee ring pi nion gear to the steering shaft using an 11/16” socket. See Figure 3A.17.

NOTE: If the steering shaft rotates while removing the nut,

insert a pin punch or a #2 phillips screwdriver into the alignment hole in the sector gear. This will lock the steering shaft in place, allowing the nut to be removed.

5. Slide the steering pinion gear off of the steering shaft.

Figure 3A.17

LTX Tractors

6. Lift up on the steering shaf t and remove the washer. See Figure 3A.18.

7. Push the steering shaft up thro ugh the frame of the tractor.

8. Remove the hex bushing. See Figure 3A.11. NOTE: Replace the hex bushing every tim e th e

steering shaft is removed.

9. Remove the drag links from the sector gear.

Remove the washer

Lift up on the steering shaft

Figure 3A.18

Remove the hex bushing

10. Remove the six screws that secure the steering plate to the frame.

11. Remove the steering plate. NOTE: The steering shaft will come out with the

steering plate..

12. Install the steering shaft by following the above steps in reverse order.

13. Test run the tractor in a safe area before returning it to service.

See Figure 3A.12.

Figure 3A.19

Remove these screws on each side

Figure 3A.20

Pivot bar

Remove this bolt

Figure 3A.21

Steering

To remove/replace the pivot bar:

1. Jack up the front end of the tractor and securely place on jack stands.

2. Remove the axles by following the procedures described in the axle section of this chapter.

3. Slide the front deck link out of the frame.

4. Support the pivot bar.

5. Remove the pivot bar pivot bolt using two 3/4” wrenches.

6. Slide the pivot bar out of the frame.

See Figure 3A.21.

Spacer

Figure 3A.22

NOTE: There is a spacer in the center of the pivot bar. It

must be in place when installing the pivot bar. See Figure 3A.22.

NOTE: Starting in the 2010 season, there will be a

stamped pivot bar on some models. The proce dure to remove it is the same as the cast iron pivot bar described in the previous steps. See Figure 3A.23.

7. Install the pivot bar by following the previous steps in reverse order.

Stamped pivot bar

Figure 3A.23

NOTE: Apply high quality grease to the frame, spacer an d

the pivot bar.

8. Preform a wheel alignment by following the steps described in the steering alignment section of this chapter.

9. Test run the tractor in a safe area before returning it to service.

LTX Tractors

Electronic Power Steering

CHAPTER 3B: ELECTRONIC POWER STEERING

NOTE: The basic steering system, such as the tie rod ends, drag links axles, etc., is covered in Chapter 3A:

Steering.

In 2012, Cub Cadet introduced the Electronic Power Steering (EPS) system on the Cub select models of the LTX

series of tractors. The EPS provides an electric assist to the steering wheel.

The EPS is a system consisting of three sub-assemblies: the rubber torsion coupling, the EPS module and the EPS motor & gearbox. They form an assembly that is inserted between the steering shaft and sector gear. The EPS system is treated as one part.

DO NOT loosen or separate any of

EPS Module

! CAUTION! CAUTION

sion coupler when the EPS assembly is built at the factory . Once it has been calibrated, it can no t be re-calibrated. Any shift between the coupling and the module will result in the EPS auto-steering, which is a very unsafe condition.

the EPS components. The module is calibrated to the tor-

EPS motor & gearbox

Rubber torsion coupling

Figure 3B.1

Rubber Torsion Coupling

The steering shaft connects the steer ing wheel to the EPS system through the rubber torsion coupling. As the steering wheel is turned, it applies force to the coupling. The force causes the torsion coupling to twist or torque. The amount the coupling torques is determined by the amount of force applied to the steering wheel, the more force applied to the steering wheel, the more the coupling twists.

NOTE: The rubber torsion coupling has hard stops bui lt into it. If the force applied to the steering wheel causes

the coupling to hit its hard stops, the steering input will transfer through the module into the steering gearbox. This allows manual steering if the EPS system fails.

EPS Module

The EPS module controls the power supplied to the EPS motor. It senses the amount of force that is being applied to the steering wheel by monitoring the torsion coupling. The module will ramp up the power supplied to the EPS motor as the force applied to the steering wheel increases. The EPS motor will reach full power within a couple of degrees of deflection of the torsion coupling.

NOTE: Auto-steering is a condition were

the EPS will turn the wheels to one direction, once the engine is started. This happens because the calibration is off and the EPS thinks there is a steering input when there isn’t.

The EPS comes with a 4 year warranty. If there is a failure with the system, replace the entire system as an assembly.

LTX Tractors

EPS motor & gearbox

The steering input passes through the torsion co upling and module into the gearbox. The gearbox then passes the input force to the output shaft connected to the steer ing housing.

EPS module

The EPS motor assists in turning the input shaft by driving a set of planetary gears. The planet ary gears drive a worm shaft. The worm shaft drives a worm gear on the output shaft.

IMPORTANT: DO NOT open or service the steering

gearbox.

DO NOT drop or hammer on any of

! CA UTION! CA UTION

trapped between the torsion coupling and the EPS module. If this sensor shifts, it can cause an auto-steer condition.

the EPS components. There is a torque senor that is

Steering shaft coupler

Torsion coupling

EPS motor

output shaft

EPS gearbox

Worm gear

Figure 3B.2

Planetary gears

Worm shaft

Worm gear

Figure 3B.3

Troubleshooting the EPS (without the 725-05419 EPS tester)

The first step in troubleshooting the EPS system is to understand how it works.

Electronic Power Steering

See Figure 3B.4.

(QJLQHVKXW GRZQFLUFXLWV

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Figure 3B.4

,JQLWLRQPRGXOH

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*5281'

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• A constant 12 volts is supplied by the battery through a 40 amp fuse in the fuse box.

• The EPS is grounded through the green wire.

• The EPS senses the ignition pulses from the ignition module primary windings throug h th e ye llow wire with a white trace.

NOTE: On tractors with Kohler engines with a Digital

Spark Advance (DSA) ignition, A diode is installed to protect the ignition module from any stray volt age that may come from the engine shut down circuits. A white wire carries a clean spark signal to the EPS to turn it on.

See Figure 3B.5.

• Once the EPS determines that the engine is running (by sensing the ignition pulses from the ignition coil) it will turn on.

• The EPS will power the EPS motor as it senses input from the steering wheel.

To troubleshoot the EPS assembly:

1 Check the 40 amp fuse in the fuse box.

See Figure 3B.6.

NOTE: If the fuse is blown, check for a short in the red

wire that goes to the EPS assembly before replac ing the fuse.

40 amp fuse

Figure 3B.5

Figure 3B.6

The technician needs to determine if there is a mechanical bind in the steering system or an EPS issue. The easiest way to rule out a binding steering system is to:

2. Remove the steering pinion gear by following the procedures described in Chapter 3: Steering.

3. Start the engine.

4. Operate the steering wheel.

• If the steering wheel now moves freely , th e issue is downstream of the pinion gear. The most likely suspect would be axles frozen to the pivot bar.

• If the steering wheel is still hard to operate, isolate the problem to either the EPS assembly or the cir cuits that go to the EPS assembly.

NOTE: To protect the EPS module, it will turn off if the

steering input is held at a hard stop for more than 2 seconds. The EPS will turn back on once the input is released from the hard stop.

LTX Tractors

NOTE: Before troubleshooting any electrical circuit on a tractor, always make sure the battery is fully charged. NOTE: The EPS assembly has constant battery power and is not controlled by the ignition switch.

To troubleshoot the EPS assembly:

5. Place the tractor on flat, level ground.

6. Remove any attachments that may be on the tractor.

7. Set the parking brake.

8. Turn the steering wheel so that the wheels are pointing straight forward.

9. With the ignition key in the off position, open the hood.

10. Locate, but do not disconnect, the EPS harness connector underneath the fuel tank. See Figure 3B.7.

EPS connector

11. Check for battery voltage at the red wire: 11a. Set the Digital Multimeter (DMM) to the DC

volts scale. 11b. Measure the battery voltage across the battery terminals NOTE: If the battery voltage is < 12.6 volts, charge the battery before continuing. 11c. Connect the black (-) lead of the DMM to the negative post of the battery. 1 1d. Back probe EPS harness connector at the red wire with a black trace, using the red (+) lead of the DMM. NOTE: The DMM should read battery voltage.

12. Check the ground to the EPS: See Figure 3B.8. 12a. Set the DMM to the DC volts scale. 12b. Connect the red (+) lead to the p ositive post of

the battery.

12c. Back probe EPS harness connector at the

green or black wire, using the black (-) lead of the DMM.

NOTE: The DMM should read battery voltage. If it

does not, disconnect the EPS harness. If you now have battery voltage at the EPS harness connector (tractor side), there is a short in the EPS assembly. If not, repair the tractor harness.

Black wire

Figure 3B.7

Figure 3B.8

Red wire

with black trace

Electronic Power Steering

13. Check the current draw of the EPS assembly. 13a. Leave the DMM connected to the ground wire

on the EPS and the battery.

13b. Place an amp clamp meter on the red wire with

a black trace.

NOTE: Cut the tape that seals the loom at the EPS con-

nector end of the harness and slide th e loom off of the wires to attach the amp clamp.

13c. Start the tractor.

NOTE: The voltage reading on the DMM should now read

over 13 volts. If it does not, repair the charging cir cuit before proceeding with troubleshooting the EPS system.

See Figure 3B.9.

Figure 3B.9

NOTE: If the voltage drop s below 13 volt s and the current draw does no t rise above 15 amp s, repair the circuit

suppling voltage to the EPS before proceeding with tr oubleshooting the EPS system.

NOTE: If the voltage drops below 13 volts and current draw is more than 15 amps, the problem is inside the

EPS assembly and it must be replaced.

13e. Turn off the tractor.

5 volt

reticle

13d. Without sitting on the tractor, turn the steering

wheel a quarter turn back and forth. Watching the voltage reading on the DMM and the current reading on the amp clamp while doing this.

14.Remove the DMM and the amp clamp meter.

15.Check the input from the ignition module. 15a. Connect the ground lead of an oscilloscope to a

good ground on the engine block.

15b. Back probe the EPS harness connector at the

yellow wire with a white trace using the positive (+) lead of the oscilloscope.

15c. Start the engine.

16. The oscilloscope should show a pulsed signal. The bottom or resting phase of each pulse must be below 5 volts. The peak of each pulse must be over 5 volts. See Figure 3B.10.

Figure 3B.10

17. The pulses must be at 9 Hertz (cycles/second) or higher (engine needs to be >490 RPM).

18. If the resting phase of the pulse is above 5 volts, there is a short in the safety circuit of the tractor that is pulling up the voltage of the ignition module.

LTX Tractors

NOTE: A voltage spike over 18.5vdc +/- 1.2v @70°F will cause the voltage regulator to shut down. The regula-

tor must be disconnected, then re-connected to reset it.

NOTE: A sustained voltage over 25 volts will damage the EPS module. IMPORTANT: Loose battery cables or disconnecting jumper cables while the engine is running will create a

high voltage spike that will damage the EPS system.

NOTE: If the results are within the specified ranges or if the amperage draw is higher the n expected, check for

a mechanical bind by:

19. Remove the EPS assembly.

20. Check the steering shaft bushings. NOTE: Cocked steering shaft bushing will bind the steering shaft, mimicking a bad EPS. Fix the bushings

before condemning the EPS.

21. If nothing is in a bind, replace the EPS assembly.

Troubleshooting the EPS (with the 725-05419 EPS Tester)

To troubleshoot the EPS using the 725-05419 EPS Tester:

1. Connect the red lead of the EPS Tester to the positive post of the battery .

2. Connect the black lead of the EPS Tester to the negative post of the battery.

NOTE: A green LED and a blue LED should be illu-

minated. If they are not, the tester is malfunctioning.

NOTE: If a red LED illuminates when the tester is

connected to the EPS, the EPS has a short and has blown the fuse on the tester.

3. Disconnect the EPS harness connector underneath the battery.

4. Plug the EPS Tester into the connector on the EPS assembly.

NOTE: The 725-05419 EPS Tester comes with a jumper harness, to be used on tractors with the battery unde r

the seat, so that the tester can reach the EPS assembly.

5. Start the engine.

6. Operate the steering wheel.

• If the steering wheel turns easily, the EPS is not the issue. Refer to the previous section to check the trac-

tor’s electrical system.

Green LED

Blue LED

Figure 3B.11

• If the steering wheel is still hard to turn:

a. Remove the EPS assembly. b. Reconnect the EPS tester to the EPS assembly by following the procedures described in the EPS

removal section of this chapter. c. Rotate the input shaft of the torsion coupler. If it rotates with minimal effort the EPS is working. d. Check for a mechanical bind in the steering system. If it’s hard to turn, the EPS is faulty.

EPS motor

Figure 3B.12

Electronic Power Steering

To remove/replace and test the EPS motor: NOTE: The EPS system has a 4 year warranty. DO NOT

remove the EPS motor to test it within the warranty period. Outside of the warranty period, the EPS motor can be replaced separately from the EPS assembly.

1 Remove the EPS assembly by following the proce-

dures described in the EPS removal section of this chapter.

2. Disconnect the EPS motor harness from the EPS module.

3. Remove the two screws that secure the motor base to the EPS, indicated by the arrows in using a 3/8” wrench.

4. Lif t the motor assembly off of the EPS.

Figure 3B.12,

Red wire

Black wire

Figure 3B.13

5. Mount the motor in a vise.

NOTE: Position the motor so that the vise jaws clamp the

motor base, to prevent damage to the motor.

6. Attach the black wire from the motor to the negative side of a 12 volt power supply capable of producing 40 amps.

NOTE: The tractor’s battery or a jum p er box ca n be use d

as a power supply.

7. Attach the red wire from the motor to the positive side of the power source.

NOTE: The motor should spin. If it does not, replace the

motor.

LTX Tractors

8. Inspect the EPS motor gasket. If it is damaged, replace it.

NOTE: Do not use a gasket sealant/adhesive on the

EPS motor gasket.

9. Remove the sun gear from the EPS motor.

10. Install the sun gear into the planetary gear set.

Sun gear

Figure 3B.14

11. Install the EPS motor. NOTE: While installing the EPS motor, align the

motor pigtail with the EPS motor harness.

12. Install the EPS assembly in the tractor by following the procedures described in the EPS removal sec tion of this chapter, in re verse order.

13. Test run the tractor in a safe area before returning it to service.

NOTE: Do not put a tractor into service with any

safety or control features that are not work ing properly.

EPS motor pigtail

Harness

Figure 3B.15

EPS removal/replacement

Loosen

Electronic Power Steering

To remove/replace the EPS assembly:

1 Remove the hood, dash and fender by following the

procedures described in Chapter 4: Body Panels.

2. Remove the fuel tank by following the procedures described in Chapter 2: Engine Related Parts.

3. Remove the steering pinion gear by following the procedures described in Chapter 3: Steering

4. Disconnect the EPS harness connector.

Steering coupler

Steering shaft

Remove

Figure 3B.16

Figure 3B.17

5. Loosen the top nut a nd bolt of the stee ring shaf t coupler using a pair of 1/2” wrenches.

6. Remove the lower nut and bolt from the steering shaft coupler.

NOTE: It may be necessary to drive the bolt out with a

punch.

7. Lift the steering shaft off of the EPS.

NOTE: It will probably be necessary to pry the steering

shaft coupler off of the EPS.

! CAUTION! CAUTION

nents can cause the calibration of the EPS to shift, resulting in an auto-steer condition.

See Figure 3B.16.

See Figure 3B.17.

DO NOT hammer on any of the EPS components.

Hammering on the EPS compo-

LTX Tractors

8. Remove the two screws securing the left dash support to the frame using a 3/8” wrench. See Figure 3B.18.

9. Slide the left dash support off of the EPS motor.

10. Remove the two screws securing the EPS bracket to the frame.

Screws

Figure 3B.18

11. Lift the EPS out of the tractor. NOTE: The EPS output shaft will pass through a

spacer, and a bushing.

12. Install the EPS by following the previous steps in reverse order.

NOTE: The washer that goes in-between the pinion

gear and the steering housing must be held in place, under the tractor, while inserting the EPS into the steering housing.

13. Test drive the tractor in a safe area before returning it to service.

NOTE: Do not put a tractor into service with any

safety or control features that are not work ing properly.

See Figure 3B.19.

Spacer

Bushing

Figure 3B.19

Body Panels

CHAPTER 4: BODY PANELS

What is covered by this chapter

The intent of this chapter is to describe the removal and disassembly of the major body panels on the tractor.

•Hood

•Seat

• Fenders

• Dash panel

Figure 4.1

“A” style hood

NOTE: It is not absolutely necessary to remove the mow-

ing deck for any procedures covered in this section. The technician may choose to remove the mowing deck so that it is easier to reach some parts of the tractor.

NOTE: The hood described in this section is the “A” style

hood. Other styles may be produced for different markets (e.g.: over-seas) or future style changes. See Figure 4.1.

LTX Tractors

Hood Hood removal:

1. The hood is front-hinged. See Figure 4.2.

2. Open the hood by lifting the rear edge to tilt it forward.

3. Disconnect the headlight wires. See Figure 4.3. NOTE: The ground terminals and powe r te rm ina l s

on the headlights are two different sizes. The green wires (ground) fit the larger termi nals. The red wires (power) fit the smaller terminals.

Lift here

Figure 4.2

Inset: headlight detail

4. The hood hinges on a pair of shoulder bolts th at fit into slots in the hood bracket.

5. The hinge travel is limited by a tab that fits into a channel in the hood bracket.

6. Open the hood far enough to align the tabs with the slots, then lift the hood off of the tractor. See Figure 4.4.

Figure 4.3

Tab

Figure 4.4

Slot Channel

Shoulder bolt

Hood components: Headlight removal

Figure 4.5

Single-pin 1156-style lamp Socket

Body Panels

1. With the spade terminals disconnected, rotate the lamp holder (socket) to release it from the grill assembly.

2. Rotate the bulb to release it from the socket. See Figure 4.6.

See Figure 4.5.

Ground terminal Power terminal

Figure 4.6

3. Install the replacement lamp following the above steps in reverse order.

LTX Tractors

Hood components: side vent removal

1. Carefully pry the vent free of the lock tabs. See Figure 4.7.

2. Pull the vent out of the hood assembly.

3. Install the hood side vent by pressing it into the hood side opening until the lock tabs click into place, securing the vent.

2 lock tabs on top

2 lock tabs on bottom

Figure 4.7

Hood components: grill removal

Body Panels

Slotted mounting hole

Screw + washer

Large Screws

Figure 4.8

Grill

Pivot bracket

1. Remove the hood assembly from the tractor, and place it on a stable work surface.

2. Loosen, but do not remove the screws that hold the upper corners of the grill to the hood using a 3/8” wrench.

3. Remove the two screws that hold the pivot bracket and grill to the hood assembly using a 1/2” wrench. See Figure 4.9.

See Figure 4.8.

Hood Grill

Locating tab

Figure 4.9

Figure 4.10

Lock tabs

4. Once removed, the headlight lens may be removed for cleaning by carefully prying the two lock tabs at the inner edge.

NOTE: The locating tab at the outer edge of each len s has

no locking feature.

5. Assemble and install the grill by reversing the steps used to remove it.

• Tighten the small screws to a torque of 15-35 in-

lbs. (1.7-4.0 N-m).

• Tighten the large screws to a torque of 35-50 in-lbs

(4.0-5.7 N-m).

See Figure 4.10.

LTX Tractors

Hood components: pivot bracket removal

1. Remove the four screws that hold the outer arms of the pivot bracket to the hood using a 3/8” wrench. See Figure 4.11.

2. Remove the two screws that hold the pivot bracket and grill to the hood assembly using a 1/2” wrench. See Figure 4.12.

Small screws

pivot bracket

Figure 4.11

Pivot bracket

Large Screws

3. Assemble and install the grill by reversing the steps used to remove it.

• Tighten the small screws to a torque of 15-35

in-lbs. (1.7-4.0 N-m).

• Tighten the large screws to a torque of 25-45

in-lbs (2.80-5.1 N-m).

Hood Grill

Figure 4.12

Body Panels

Seat and Fenders

The battery will be removed in this procedure. Review the Operator’s Manual and the Chapter

! CA UTION! CAUTION

There are four variants of fender used on the Cub Cadet Series 1000 for the model year 2009 and after:

• Manual PTO models have two levers on the right fender: one for the deck height control and one for the PTO.

• Electric PTO models have one lever on the right fender to control the deck height.

• CVT-drive tractors (single-speed transmission + variable speed pulleys) use fenders with a single pedal opening on each side: clutch/brake on the left, drive pedal on the right. In addition, a forward-neutralreverse lever is on the left fender.

• Hydrostatic-drive tractors use fenders with a single pedal opening on the left, and two openings on the right. The clutch/brake pedal is on the left, with two pedals on the right; one to control forward drive, and the other to control reverse drive.

7: Electrical Systems for important safety information about handling batteries before proceeding.

IMPORTANT: Do not return an unsafe mower to service.

Dash mounting bolts

Drive belt tensioner bracket pivot bolt

Figure 4.13

NOTE: Removing the fenders provides access to:

• The bolts that hold the base of the dash panel to the frame.

• The nut that holds the drive belt tensioner pivot bracket to the frame.

• The travel stop pin that must be taken-off to remove the control pedal cross-shaft.

See Figure 4.13.

LTX Tractors

Removal procedures for fenders are very similar on all variants. Where necessary , notes will be included to cover slight differences in procedures.

1. Seat removal: It is necessary to remove the seat

before removing the fenders, primarily because of the seat safety switch connection.

1a. Tilt the seat up, and disconnect the negative

battery cable.

See Figure 4.14.

Negative battery cable

Figure 4.14

NOTE: The seat slides in three “T” slots in the seat

bracket. A single bolt threads into one of the forward bosses on the seat base, locking it into the slots. On installation, tighten the bolt to a torque of 60-80 in-lbs. (7-9 N-m).

1b. Remove the locking bolt using a 9/16” wrench.

See Figure 4.15.

1c. Slide the seat forward to the end of its travel,

then lift it up to disengage the slide blocks from the “T” slots.

1d. Disconnect the seat safety switch from the

harness plug to remove the seat.

1e. Lift the seat off of the tractor.

See Figure 4.16.

Locking bosses

Bolt

Figure 4.15

Seat safety switch

Harness plug

Figure 4.16

Correct spring location

Body Panels

1f. The seat adjuster lever and spring will come

easily off the bottom of the seat. See Figure 4.17.

• The lever is located by a tab that fits into a slot on the bottom of the seat.

Seat adjuster lever

Figure 4.17

1 Push in

2 slide forward

• The spring fits into a toroidal (doughnut shaped) recess in the bottom of the seat.

1g. To remove the seat safety switch: squeeze the

tabs on the side of the switch, and push it into the seat base.

1h. Slide the switch to the wider end of the hole in

the seat base, and pull it out.

See Figure 4.18.

Positive cable

Negative cable

Figure 4.18

Figure 4.19

Hold down

2. Remove the battery and tray: NOTE: Battery tray removal provides easy access to the

following service points:

• Fluid check point on hydrostatic transaxles.

• Electrical: Solenoid, main fuse, battery cables

• Drive belt inspection

• Deck lift linkage inspection

2a. Disconnect the positive battery cable from the

battery (the negative battery cable was discon nected in an earlier step). See Figure 4.19.

LTX Tractors

2b. Remove the battery hold-down by prying the

end of the hold-down out of the “U” shaped slot.

2c. Lift the battery out of the tractor.

See Figure 4.20.

2d. Lift the battery tray out of the tractor.

When reinstalling a battery in

! CAUTION! CAUTION

the tractor.

NOTE: It is not necessary to remove the seat

bracket when removing the fenders.

2e. The seat bracket may be removed using a pair

of 1/2” wrenches.

NOTE: Later production units will use self tapping

screws instead of a nut and bolt.

this tractor, use only the original type of battery. The negative terminal must

go toward the rear of

See Figure 4.21.

Slot

Battery tray

Figure 4.20

Battery hold-down

3. Remove the grips from the fender-mounted control levers.

3a. Pull the shift knob off of the forward-neutral-

reverse lever (on CVT-equipped tractors). See Figure 4.22.

Figure 4.21

F-N-R lever

Figure 4.22

Body Panels

Lift assist spring

Figure 4.23

3b. If the tractor has a deck lift assist spring,

remove the deck or lift the mower deck to the highest position and support it with wood blocks.

NOTE: Tractors equ ipped with the 3 8” deck and 42” tim ed-

blade R-deck will not have lift assist springs.

3c. Unhook and gently release the lift assist spring

from the back of the tractor frame. See Figure 4.24.

See Figure 4.23.

PTO lever

Figure 4.24

Figure 4.25

Deck height lever

3d. Remove the grips from the deck lift lever and

PTO engagement lever (on manual PTO mod els). See Figure 4.25.

LTX Tractors

NOTE: A blow-gun with air pressure regulated to

less than 25 PSI (1.72 Bars). may be inserted into the small hole at the end of a rubber grip to inflate it slightly, easing removal.

4. Remove the rubber foot pads. See Figure 4.27.

See Figure 4.26.

Air blow gun

Figure 4.26

5. Remove the drive pedals. 5a. Remove the reverse pad from the drive pedal

(hydrostatic drive tractors only). See Figure 4.28.

Figure 4.27

Reverse pedal pad

Figure 4.28

Drive pedal

Drive linkage

Figure 4.29

Body Panels

5b. Unbolt the drive pedal using a 1/2” wrench, and

maneuver it out of the tractor.

5c. Remove the brake pedal using a 1/2” wrench.

See Figure 4.29.

Wax paper

Figure 4.30

Bolts under label

6. Remove the fender panel. 6a. Carefully peel-up the large operating instruc-

tions label from the floor portion of the fender panel.

See Figure 4.30.

• Gentle application of heat will help loosen the

adhesive.

• Start at the back: the back edge is closer to the

fasteners that are concealed by the label.

• Use wax paper to preserve the adhesive. 6b. Remove the two bolts that are found under the

label using a 3/8” wrench.

6c. Remove the four bolts that hold the fender to

the seat-box portion of the frame using a 1/2” wrench.

See Figure 4.31.

Bolts

Figure 4.31

LTX Tractors

6d. Remove the nuts and bolts that hold th e front

edge of each fender to the frame outriggers using a pair of 7/16” wrenches. See Figure 4.32.

6e. Carefully lift the fender assembly off of the

tractor.

NOTE: On tractors equipped with a Kohler s ing le

cylinder engine, the front of the fender mounts to the outrigger using a rubber bush ing and steel spacer. See Figure 4.33.

Nut, bolt, and washer

Figure 4.32

Steel spacer

Rubber bushing

Figure 4.33

Screws that hold the handle assembly

Figure 4.34

Steel reinforcement plate

Body Panels

NOTE: The handle assemblies can be removed from the

rear fenders using a 3/8” wrench, from b eneath the fender.

NOTE: With the handle assembly removed, the steel rein-

forcement plate can be unbolted from the top side of the fender using a 3/8” wrench.

See Figure 4.34.

See Figure 4.35.

Reinforcement plate mounting screws

Figure 4.35

LTX Tractors

Dash Panel

The dash panel may be removed to provide easier access to the cruise-control and drive system linkag e s, or to

replace the dash or dash support brackets.

1. Remove the fenders.

2. Remove the steering wheel:

2a. Remove the cover from the center of the

steering wheel.

NOTE: The cover can be released by prying-in on

the lock-tabs on the under-side of the steer ing wheel. See Figure 4.37.

See Figure 4.36.

Figure 4.36

2b. Remove the bolt that holds the steering wheel

to the steering shaft using a 1/2” wrench.

2c. Lift the steering wheel off of the shaft.

! CA UTION! CA UTION

The following steps involve working with gasoline. Gasoline is flammable, and steps should be taken to avoid fire hazard;

• Work in a well-ventilated area.

• Allow the engine to cool fully before starting work on the tractor.

• Eliminate any sources of possible ignition from the work area, including but not limited to: heat sources, open flame, potential sparks.

• Clean-up any spilled fuel quickly and properly, disposing of cleaning materials in a way that will not produce a further fire hazard.

Figure 4.37

• Hold any drained fuel in an approved and safe container.

Top tank bracket mounting screw

Figure 4.38

Body Panels

3. Remove the fuel tank. 3a. Drain the fuel tank to a level that will not allow

fuel to spill.

NOTE: The tank may be drained by mechanical syphon or

by disconnecting the fuel line from the fuel filter.

3b. Remove the two screws that hold the top of the

wire form fuel tank bracket to the dash support brackets using a 3/8” wrench.

3c. Support the fuel tank.

See Figure 4.38.

Figure 4.39

3d. Remove the two screws that hold the bottom of

the wire form bracket to the dash support brack ets using a 3/8” wrench.

3e. Lift the fuel tank and bracket out of the tractor.

See Figure 4.39.

NOTE: The fuel line may be lef t connected to the fuel t ank,

and the fuel tank supported next to the tractor in a position that will not allow fuel to spill. See Figure 4.40.

Figure 4.40

LTX Tractors

4. Disconnect the harness plugs from the following electrical devices under the dashboard: See Figure 4.41.

• Hour meter

• Key switch

• RMC module

• PTO switch, if so equipped

5. Use a phillips head screwdriver to remove the throttle control grip. See Figure 4.42.

6. Carefully peel-off the throttle control label.

• Gentle application of heat will help loosen the

adhesive.

Hour meter RMC Module Key switch PTO switch

Figure 4.41

Throttle grip

Throttle control label

• Use wax paper to preserve the adhesive.

7. Remove the two Torx

head screws that hold the throttle control to the dash panel using a T-27 driver. See Figure 4.43.

Figure 4.42

Figure 4.43

Rod

Figure 4.44

Body Panels

8. If the tractor has a separate choke cable, disconnect it from the engine.

9. Remove the locking clip that holds the cruise control / parking brake rod to the engagement lever assembly. See Figure 4.44.

10. Disengage the rod from the lever assembly.

NOTE: The rod is kept in slight tension by a light spring

that hooks between the frame and the step in the middle of the rod.

See Figure 4.45.

Spring

Figure 4.45

Internal mounting ear

Screw Dash support

bracket

11. Remove the screws that hold the inside mounting ears of the dash panel to the dash support brackets using a 3/8” wrench.

See Figure 4.46.

Figure 4.46

LTX Tractors

12. Remove the four screws that hold the base of the dash panel to the frame using a T-40 driver and a 1/ 2” wrench.

NOTE: On tractors equipped with electro nic powe r

• Remove the screw that holds the EPS motor

See Figure 4.47.

steering:

cover to the left side of the dash using a 3/8” wrench.

See Figure 4.48.

Torx head screw Hex-head cap screw

Figure 4.47

EPS motor

cover

• Pull the EPS motor cover off of the barbed fas-

tener.

13. Lift the dash panel off of the tractor. See Figure 4.49.

14. Assembly notes:

• Assemble tractor by reversing the disassembly

process.

• Tighten fasteners to a torque of 20-22 in-lbs.

(2.25-2.50 N-m).

• Test all tractor controls and features before

returning the tractor to service.

Figure 4.48

Figure 4.49

HYDRO. DRIVE AND BRAKE SYSTEM

CHAPTER 5: HYDRO. DRIVE AND BRAKE SYSTEM

About this chapter

The drive and brake systems for the Cub Cadet Series 1000 tractor are combined. Two reasons for this:

• The brake on the Series 1000 tractor is supplied with the transaxle. On hydrostatic-drive tractors, the brake comes from Hydro-Gear.

• The brake pedal applies the brake and disengages the drive system. Both systems share common linkage.

The hydrostatic transaxle used in the Cub Cadet Series 1000 is a Hydro-Gear model 311-0510. LTX and SLTX transaxles are similar except that the SLTX transaxles have 4-lug wheel mount hubs in place of a double -D axle.

NOTE: A training video BLN-51763 covers this transa xle . NOTE: The complete Hydro-Gear Service and Repair ma nual, BLN-51260 is included as an addendum to this

manual, with the permission of and thanks to Hydro-Gear.

If the tractor has drive system problems within the warranty period, the Cub Cadet service dealer has the following responsibilities:

• Eliminate any external causes for drive system problems, before removing the transmission from the tractor.

• External problems would include, but are not limited to: belt, linkage, low fluid, or brake issues.

• Look for signs of over-use or abuse. Transaxles that fail because of over use or abuse are not warrantable. They are to be repaired or replaced at the customer’s expense.

• If the problem is internal, the transmission is to be removed, repaired, and reinstalled unless the cost of repair exceeds 70% of the price of a new replacement transaxle.

• If Hydro-Gear transaxle is replaced under warranty, the original transaxle will be called-back for evaluation and vendor recovery.

• Warranty Claims will be denied, returned, or adjusted if the returned transaxle does not meet Cub Cadet’s replacement criteria.

• If the dealer has questions regarding transaxle replacement, they should call Cub Cadet Service, using the dealer only line, before proceeding.

LTX Tractors

Externally repairable drive system problems

Most of the problems listed in this section will result in a customer complaint of low power or low ground speed, sometimes accompanied by growling or similar noises from the transaxle. If the tractor is difficult to push, check the brakes and the hydraulic bypass.

1. Engine performance:

1a. Find the specified engine RPM for the tractor (

3,375-3,525 RPM for the Cub Cadet Series

1000).

1b. Check the engine with a tachometer to con-

firm that it maintains the specified RPM under normal load.

1c. Correct engine performance problems before

trying to diagnose drive system problems.

2. Check the tires: Confirm that the correct size tires

are on the tractor.

See Figure 5.1.

Smaller rear tires will yield lower ground speed. Under-filled tires will put additional load on the drive system.

• LTX 1040 Series has 20” x 8” rear tires.

• LTX 1050 Series has 20” x 10” rear tires.

• SLTX 1050 Series has 22” x 9.5” rear tires.

3. Check the hydro. bypass linkage: See Figure 5.2.

3a. If the tractor does not drive with as much

speed or power as normal:

• Confirm that the transmission release rod is fully engaged (pushed-in).

• When the transmission release rod is fully engaged, confirm that the bypass arm on the side of the transaxle moves freely.

• If the bypass arm is not releasing fully, the variable displacement pump will cavitate, or pump air. The air bubbles will produce a growling noise as they go through the system.

3b. If the tractor is difficult to push:

Figure 5.1

bypass linkage

Figure 5.2

• Confirm that the Transmission Release Rod is disengaged (pulled-out and hooked).

• Confirm that the Transmission Release Rod and spring are moving the bypass arm correctly. It takes about 5 lbs. (2.3 Kg.) force to move the bypass arm fully into the release position.

• If the bypass linkage is working correctly, confirm that the brakes are releasing fully.

HYDRO. DRIVE AND BRAKE SYSTEM

4. Check the brakes: See Figure 5.3. 4a. The brake linkage applies the brakes and dis-

engages the drive belt. Confirm that both parts of the linkage are moving properly.

• When the brake pedal is released, the transmis-

sion drive belt should be under tension. It should take about 3 lbs (1.36 Kg.) of force at the center of the longest span of the belt to move the belt 1/2” (1.3 cm) inward.

Brake return spring

Travel stop

Brake arm

Figure 5.3

Belt tension gauge

Actuator spring

• If the belt is not tensioning properly, the drive will

slip. Some belt noise may be present, but the transmission itself will not make much noise.

• Accelerated belt wear, and the presence of black

belt residue, are cause to check the belt tensioner linkage.

• If the brake is dragging, the transmission is likely to

make growling noises and run hot.

• The rotor may be discolored from heat.

4b. If the linkage is working properly , but the brake s

seem to be dragging, check the caliper. See Figure 5.4.

• When the brakes are released, it should be possi-

ble to wiggle the brake rotor within the caliper.

• If the rotor is tight in the caliper, check the caliper

adjustment.

Check the operation of the caliper to confirm that it is not stuck.

• When the brake pedal is released, the brake arm

on the caliper should fall completely back against the stop.

Figure 5.4

LTX Tractors

4c. Operator error: See Figure 5.5.

Left foot on clutch /brake pedal

• If the customer complains of symptoms similar to a brake / clutch linkage problem, yet no mechanical problem is present, check the customer.

5. Check the drive belt. See Figure 5.6.

• In normal use, drive belts typically last for years without problems.

• If the belt fails prematurely, identify and correct the cause of the belt failure before returning the tractor to service.

Right foot on Reverse pedal

Operator error

Figure 5.5

5a. Look-up the part number for the belt, and con-

firm that the correct OEM belt is on the tractor. 5b. Check the belt routing. 5c. Check the brake/clutch linkage and belt ten-

sioning pulleys. 5d. Check for foreign objects jammed against the

belt. 5e. Check for missing or out-of-place belt guides. See the belt replacement section of this chapter. 5f. Check the engine crankshaft and transaxle input pulleys.

Confirm that the sheaves are not spread-out, causing a loose belt fit.

Figure 5.6

HYDRO. DRIVE AND BRAKE SYSTEM

Travel limit pin

Drive control rod

Drive pedal latch plate Drive pedal bracket

Figure 5.7

Lost motion link

Lost motion slot; Neutral or Forward

Drive control rod

Lost motion link

6. Check the drive control linkage. See Figure 5.7. 6a. The travel limit pin fits into the curved slot in the

drive pedal latch plate. The pedal bracket should have enough travel for the pin to hit both ends of the curved slot when the pedal is moved through the full range of its travel.

6b. Some lost motion is built into the linkage so that

there is a “dead” range as the pedal moves from neutral to reverse.

• This dead spot allows the reverse safety switch to

act before the tractor actually begins to move backward.

See Figure 5.8.

Connector pin

Lost motion slot; Reverse

Pedal mounting bracket

Plastic bushing

Connector pin

Figure 5.8

• It is normal to have 1-1/8” play at the Forward

pedal or 1” play at the Reverse pedal in this dead range.

6c. The most likely causes for additional lost motion

that would effect the ground speed of tractor are:

See Figure 5.9.

• The drive pedal itself being loose on the bracket.

• Worn plastic bushings between the drive pedal

bracket and the brake cross-shaft.

Figure 5.9

LTX Tractors

6d. If the tractor makes drive noise or creeps

while the pedal is in neutral, but seems to have lost speed in just one direction (forward or reverse):

• The rod connecting the pedal bracket to the arm on the transaxle may be bent, changing its effective length. See Figure 5.10.

• The transaxle neutral control may be out of adjustment. See the Neutral control adjustment section of this chapter.

Drive control rod

Figure 5.10

7. Check the fluid:

• Unless the fluid gets contaminated, it should last for many years with no fluid service.

• Check the level and condition of the fluid: It should be no more than 1-1/4” (3.175 cm) down from the top of the casting. The fluid level is generally near the bottom of the threads in the plug hole.

• Check at the socket-head plug on the casting, NOT the plastic expansion tank. Remove the plug using a 1/4” allen wrench. See Figure 5.11.

• The transaxle should contain 20W-50 motor oil having a minimum API classification of SL.

• If there is any reason to suspect that the fluid is contaminated, replace the fluid and monitor performance. A second fluid change after a brief period of operation may be necessary to remove all contaminants.

• If the fluid is low, there is probably a leak that needs to be found and repaired.

• If the fluid is too full, it will drain into the catch tank

Expansion tank

Figure 5.11

Fill port

Torque bracket mounting points

HYDRO. DRIVE AND BRAKE SYSTEM

8. Transaxle mounting: 8a. The primary symptoms of a transaxle that is

loose in the frame are that it will lose drive or throw-off the drive belt in reverse.

8b. Check the torque bracket and the axle mount-

ing points at the frame. See Figure 5.12.

9. Eliminate heat factors

Torque bracket

Figure 5.12

Indications that a transaxle is not warrantable

Anything that would indicate misuse, abuse, neglect, accident, improper maintenance, alteration, vandalism, theft, fire, water or damage because of other peril or natural disaster will render the transaxle non-warrantable even though it is within the normal warranty per iod .

• As hydrostatic transaxles wear, they will begin to lose drive power when they get hot.

• Heat is the enemy of transaxle performance and longevity.

• If the cooling fan is damaged, replace it.

• Clean any mud and debris from the transaxle so that it can shed heat properly.

• DO NOT clean the transaxle (or any part of the tractor) with a pressure washer.

• Do not direct hose water at line pressure at the transaxle or any bearings on the tractor.

NOTE: It is possible to inject water past seals, contaminat-

ing fluid and ruining bearings.

Typical indicators of a void warranty would be:

• The normal warranty is for 3 years or 120 hours, whichever comes first. Beyond 120 hours of use, the tractor is out of warranty

• Abnormally high wear indicators for the age of the trac tor (usually consistent with high h ours of usage). As an example, if the tires are completely worn-out on a tractor that is 6-months old, it is reasonable to think it has been used pretty heavily even if the hour meter has been unplugged.

• Bent axle, broken housing, or other obvious signs of impact damage

• Contaminated fluid or low fluid

• Damage to the cooling fan

• Enough dirt or debris on the transaxle to prevent the it from cooling properly

• Indication that the tractor has been over-loaded.

LTX Tractors

Brake adjustment

1. Test the operation of the brakes 1a. Disengage the transmission release rod by

pulling it out and hooking it.

1b. Set the parking brake by depressing the

brake/clutch pedal and pushing-down on the parking brake/cruise control lever. See Figure 5.13.

1c. Attempt to push the tractor. If it can be pushed

by hand without skidding a rear wheel, check

and adjust the brakes. 1d. Release the parking brake. 1e. Attempt to push the tractor again. If it cannot

be pushed with reasonable effort, check and

adjust the brakes and the hydro bypass (con

trolled by the transmission release rod).

2. Visually inspect the linkage to confirm that it functions properly. See Figure 5.14.

• Beneath the floor panel, on the right side of the

tractor there are two semi-circular latch plates.

• The outer latch plate rotates with the drive con-

trol pedals. The inner latch plate rotates with the clutch/brake pedal.

2a. With the clutch/brake pedal fully released:

• The travel limit pin should be resting against the

front of the curved slot. See Figure 5.14.

Travel limit pin

Figure 5.13

Clutch/brake latch plate: fully released position

Figure 5.14

• The rod that connects the clutch/brake latch

plate to the heavy brake actuator spring should be slack. See Figure 5.15.

• The light brake pull-off spring should be holding

the brake arm back against the stop.

Brake actuator rod Brake actuator spring Pull-off

spring

Figure 5.15

HYDRO. DRIVE AND BRAKE SYSTEM

2b. Check the gap between the brake rotor and the

brake pads.

• There is a fixed pad in the transaxle housing.

• There is a moving pad in the brake caliper.

• Wiggle the brake rotor slightly, and attempt to insert a 0.015” (0.38mm) feeler gauge between the rotor and either pad.

Brake yoke

Figure 5.16

Brake rotor

2c. Adjust the gap, if necessary, so that the feeler

gauge slips between the pad and the rotor with light pressure.

• If adjustment is necessary , remove and discard the cotter pin that locks the adjusting nut.

• Turn the nut to adjust the gap.

• Apply and release the brake pedal, then re-check the gap.

• If the gap is consistent, install a new cotter pin to secure the adjustment nut.

2d. If the brake seems to be sticking, or the rotor is

discolored from dragging, remove the brake yoke for repair or replacement.

2e. Confirm that the drive belt is under tension

when the brake is released. 2f. Set the brake. The drive belt should be slack. 2g. Re-test the operation of the brakes before

returning the tractor to service.

NOTE: The hydrostatic transaxle creates it’s own braking

force from the hydraulic pressure in the hydraulic motor. The br ake is used more as a parking brake than a service brake. Properly adjusted brakes generally show little wear over the life of the trac tor.

See Figure 5.16.

LTX Tractors

Neutral control adjustment

NOTE: Neutral control rarely goes out of adjustment on its own. If it needs adjustment, check for damaged

linkage or signs of tampering.

! CA UTION! CA UTION

1. Loosen the wheel bolt or lug nuts on the right rear wheel of the tractor.

2. Lift and safely support the rear of the tractor.

3. Remove the right rear wheel:

• LTX tractor drive wheels fit on a “Double-D”

axle, and can be removed using a 1/2” wrench.

• SLTX tractor drive wheels are hub mounted.

Remove the lug nuts using a 3/4” wrench.

4. bypass the seat safety switch. See Figure 5.17. 4a. Remove the seat from the tractor. 4b. Disconnect the seat safety switch. NOTE: This procedure is described in Chapter 4:

The tractor engine and drive system must be operated to complete this procedure. Confirm that no hazards will be incurred by running the engine or operating the drive system:

• Work in a well vented area to prevent carbon monoxide poisoning or asphyxiation.

• Be careful to avoid contact with hot parts or moving parts.

Body Panels.

Seat safety switch

Figure 5.17

5. Confirm that the linkage is in the neutral position: The roller on the control arm must be centered in the “elbow” of the control cam.

• If the roller is not centered in the elbow of the

control cam, identify and correct the problem before proceeding.

See Figure 5.18.

Cam Roller

Figure 5.18

HYDRO. DRIVE AND BRAKE SYSTEM

6. Loosen the socket head cap screw that locks the adjusting puck using a 1/4” allen wrench.

7. Have a 1-1/8” wrench handy, or size an adjustable wrench to fit the adjusting puck.

See Figure 5.19.

8. Start the engine and advance throttle to maximum RPM.

9. Set the adjusting puck so that neither wheel rotates. The brake rotor should also be stationary.

10. Lock the adjusting puck, then confirm that the wheels and brake rotor are still motionless.

11. Turn the engine off.

12. Reinstall the seat, reconnecting the seat switch.

13. Reinstall the rear wheel:

Double-D axle

13a. Lubricate the axle with anti-seize compound

before positioning the wheel on LTX models.

Figure 5.19

13b. Apply thread locking compound such as Loctite

242

(blue) to the threads of the wheel bolt.

13c. Install the bolt and belleville washer so that the

inside diameter contact area of the washer is against the bolt head and the outside diameter contact area is against the wheel.

Hub

13d. Position the wheel on the hub and secure it with

four lugs.

14. Lower the tractor to the ground. 14a. Tighten the bolt to a torque of 12-15 ft-lbs. (16-

20 N-m).

14b. Tighten the lugs on the SLTX tractors to a

torque of 30-42 ft-lbs. (41-57 N-m).

15. Test the drive system and all safety features before returning the unit to service.

LTX Tractors

Linkage: pedal shaft

Description: The Clutch/brake pedal and the drive control pedal operate on two concentric shafts.

• The clutch/brake shaft runs the full width of the tractor.

• The drive control shaft is tubular, and pivots on the clutch/brake shaft.

• Each shaft has a toothed latch plate. The latch plates are next to each other.

• The cruise control/park brake lever operates a common pawl that engages the latch plate of whichever pedal is applied. See Figure 5.20.

• A travel limit pin passes through curved slots in both of the latch plates. The pin is blocked into place by the fenders. See Figure 5.21.

Cruise / park pawl

Clutch/brake latch plate

Drive (cruise control) latch plate

Figure 5.20

Travel limit pin

Figure 5.21

Pedal shaft assembly removal

Clutch/brake shaft Rod

Figure 5.22

Travel limit pin

HYDRO. DRIVE AND BRAKE SYSTEM

NOTE: Confirm that the parking brake is released before

starting work.

1. Remove the mowing deck.

2. Remove the fenders, as described in the body p anels chapter of this manual.

3. Disconnect the rod that joins the arm at the left side of the brake/clutch shaft to the drive belt tensioner pulley bracket.

• Remove and discard the cotter pin to disconnect

the rod.

4. Remove the locking clip that holds the travel limit pin in place.

See Figure 5.22.

Clutch/brake pedal return spring

5. Withdraw the travel limit pin. See Figure 5.23.

Latch plates

Figure 5.23

6. Unhook the clutch/brake pedal return spring. See Figure 5.24.

Hooks to clutch/brake latch plate

Figure 5.24

Hooks to frame

LTX Tractors

7. Remove and discard the push cap that holds the drive control pedal shaft onto the clut ch/brake shaf t. See Figure 5.25.

8. Loosen the bolt that holds the left pedal shaft support strap using a 1/2” wrench. See Figure 5.26.

9. Remove the bolt that holds the right pedal shaft support strap using a 1/2” wrench.

NOTE: This will allow the pedal shaft assembly to

hang-down slightly on the right side of the tractor.

Tie-rod separator

Figure 5.25

Left pedal shaft support strap

Figure 5.26

Push cap

10. Disconnect the drive control rod from the drive pedal latch plate.

• Remove and discard the cotter pin.

• Unhook the drive control rod.

See Figure 5.27.

Drive control rod

Drive pedal latch plate

Figure 5.27

Drive control pedal shaft

Figure 5.28

HYDRO. DRIVE AND BRAKE SYSTEM

1 1. Allow the drive pedal shaft to rotate down, then pull it

off of the pedal shaft assembly.

See Figure 5.28.

Clutch/brake latch plate

Figure 5.29

Brake rod Flat washer

12. Disconnect the brake rod from the clutch/brake latch plate.

See Figure 5.29.

• Remove the cotter pin and flat washer to discon-

nect the brake rod. Discard the cotter pin.

• Unhook the brake rod from the clutch/brake latch

plate.

13. Remove the left side pedal shaft support strap, and lower the pedal shaft assembly out of the tractor. See Figure 5.30.

Figure 5.30

LTX Tractors

NOTE: The pedal shaft support straps are two dif-

ferent sizes. The smaller strap holds-up the left (brake pedal) end of the pedal shaft assembly. The larger strap holds-up the right (drive control pedal) end of the pedal shaft assembly.

14. Inspect the pedal shaft components individually. Replace any parts that are worn or damaged. See Figure 5.32.

See Figure 5.31.

Left side strap Right side strap

Figure 5.31

Clutch/brake pedal shaft Push cap

• The plastic bushings that fit between the two

pedal shafts should be replaced any time they are removed. Lubricate them with a dry PTFE or graphite-based lubricant on assembly. NOT grease.

• Replace the push cap and all removed cotter

pins with new parts.

15. Install the pedal shaft assembly by reversing the steps used to remove it, then install the fe nders.

15a.Lubricate the points where the pedal shaft s

meet the frame with a good quality lithiumbased grease.

See Figure 5.33.

Drive pedal shaft Pedal shaft support strap

Bushings

Figure 5.32

Figure 5.33

Figure 5.34

HYDRO. DRIVE AND BRAKE SYSTEM

NOTE: Leaving the drive control pedal shaft loose until

after the brake rod is secured will make it easier .

15b. Position the drive control shaft and bushings,

fasten the drive control rod to it, then drive the push cap on.

15c. Tighten the pedal shaft support strap bolts to a

torque of 12-15 ft-lbs. (16-20 N-m).

15d. Attach the belt tensioner pulley rod.

16. Test the drive system and all safety features before returning the tractor to service.

See Figure 5.34.

LTX Tractors

Belt control; tensioner and idler pulleys

NOTE: The V-idler pulleys can be removed from

below using a 1/2” wrench, with no disas se m b ly be y o nd rem o v ing t h e cutt i n g deck . See Figure 5.35.

NOTE: Confirm that the parking brake is released

before starting work.

1. Remove the mowing deck.

2. Remove the fenders by following the steps described in Chapter 4: Body Panels.

V-sheave pulleys

Figure 5.35

3. Disconnect the rod that joins the arm at the le ft side of the clutch/brake shaft to the drive belt tensioner pulley bracket.

• Remove and discard the cotter pin to discon-

nect the rod.

4. Disconnect the extension spring that pulls on the bracket to tension the drive belt.

See Figure 5.36.

See Figure 5.37.

Clutch/brake shaft Rod Bracket

Figure 5.36

Extension spring

Mounting points

Figure 5.37

Figure 5.38

Remove this bolt. Nut is above frame

HYDRO. DRIVE AND BRAKE SYSTEM

5. Note the belt routing, then slip the drive belt off of the two pulleys on the tensioning bracket.

6. Remove the nut and bolt that hold the belt tensioner pulley bracket to the frame using a pair of 9/16” wrenches.

7. Maneuver the belt tensioner bracket assembly to clear the belt, and remove it from the tractor. See Figure 5.39.

See Figure 5.38.

Figure 5.39

Bracket pivot point

Figure 5.40

NOTE: The bracket assembly pivots on the bolt that

passes through the fixed, flat-sheave idler pulley.

8. On the bench, the flat-sheave idler pulley, and the spacers used to position it can be lifted off of the pul ley bracket. See Figure 5.40.

LTX Tractors

NOTE: When installed, the head of the bolt that

holds the bracket assembly to the tractor rests against the shouldered side of the flat sheave idler pulley.

See Figure 5.41.

Shoulder height

Figure 5.41

• When installed, the spacers fit against the flat side of the flat sheave idler pulley. See Figure 5.42.

9. The V-sheave tensioner pulley can be un-bolted from the bracket using a 1/2” wrench.

10. The rod that connects the bracket to the clutch/ brake pedal shaft can be maneuvered to come out of its slot in the bracket.

11. Assemble and install the belt tensioner pulley by reversing the steps used to remove and disassem ble it.

See Figure 5.43.

Flat sheave pulley

Figure 5.42

Flat surface Hex bushing Shoulder bushing Bolt

• Lubricate the pivot point with a good quality lith-

ium-base grease.

12. Reinstall the fenders.

13. Test the drive system and all safety features before returning the tractor to service.

Figure 5.43

Drive belt replacement

HYDRO. DRIVE AND BRAKE SYSTEM

! CA UTION! CA UTION

The battery will be removed in this procedure. Review the Operator’s Manual and Chapter 7: Electrical System for important safety information abou t ha nd lin g ba tte r ies be fo re proce e din g.

1. Remove the mowing deck.

2. Set the park brake to release belt tension.

3. Remove the battery and battery tray by following the procedures described in Chapter 4: Body Panels. See Figure 5.44.

Figure 5.44

Fan nut

4. Remove drive belt from the transaxle pulley. See Figure 5.45.

Figure 5.45

4a. Remove the nut using a 3/4” wrench. An impact

wrench with a socket will be most effective.

4b. Lift-off the cooling fan.

LTX Tractors

4c. Remove the pulley. The belt will clear the belt

keepers on top of the transaxle as the pulley comes up.

NOTE: Correct orientation of input pulley:

See Figure 5.47.

See Figure 5.46.

Figure 5.46

Top of hydro. pulley

• Tall shoulder goes up.

• Short shoulder with snap-ring stop goes down.

5. Lift and safely support the tractor. See Figure 5.48.

Bottom of hydro. pulley

Figure 5.47

Figure 5.48

Belt

Belt route

HYDRO. DRIVE AND BRAKE SYSTEM

6. Work the belt out of the two pulleys on the belt tensioner bracket. See Figure 5.49.

Figure 5.49

Fixed idler

Belt keeper pin

Figure 5.50

7. Remove the single, fixe d idler from the frame of the tractor using a 1/2” wrench.

8. Remove the belt keeper near the engine pulley or electric PTO clutch, using a 1/2” wrench.

8a. With manual PTO, a single bolt holds the belt

keeper to the frame, to the left side of the engine.

See Figure 5.51.

See Figure 5.50.

Bolt

Belt keeper

Shoulder fits through hole in frame

Figure 5.51

LTX Tractors

8b. With electric PTO, there are two fasteners:

See Figure 5.52.

8c. One bolt holds the belt keeper to the frame, to

the left side of the engine.

8d. A nut holds the belt keeper to the right-side

frame channel.

NOTE: The electric PTO belt keeper incorporates

an anti-rotation bracket for the PTO clutch.

9. Lower the engine pulley to remove the belt; manual PTO.

Nut

Belt keeper Bolt

Figure 5.52

9a. Remove the bolt that holds the engine pulley

to the crankshaft using a 5/8” wrench.

9b. Slide the pulley off of the engine crankshaft.

The belt will clear the belt keepers as the pul ley comes down. See Figure 5.53.

9c. Remove the belt.

10. Lower the engine pulley to remove the belt; electric PTO.

10a.Disconnect the PTO clutch electrical plug from

the harness.

See Figure 5.54.

Figure 5.53

Wire harness

PTO clutch plug

Figure 5.54

HYDRO. DRIVE AND BRAKE SYSTEM

10b. Remove the bolt that holds the PTO clutch to

the engine crankshaft using a 5/8” wrench. Figure 5.55.

NOTE: An impact wrench and socket will be most effec-

tive. Otherwise it may be necessary to block the ring-gear to prevent the crankshaft from turning .

See

Crankshaft bolt PTO Clutch

Figure 5.55

Washers (2)

PTO clutch

Crankshaft bolt

! CAUTION! CAUTION

10c. Carefully lower the PTO clutch and any associ-

ated hardware. See Figure 5.56.

The PTO clutch is heavy, and it may fall as the bolt is removed.

Figure 5.56

Belt keepers

Figure 5.57

10d. Slide the pulley off of the engine crankshaft.

The belt will clear the belt keepers as the pulley comes down.

10e. Remove the belt.

See Figure 5.57.

LTX Tractors

NOTE: The flat edge of the crankshaft pulley faces

the electric PTO clutch. The end with the inside diameter chamfered goes against the fillet near the base of the crankshaft. See Figure 5.58.

11. If the drive belt failed prematurely, identify and correct the cause of the failure before installing a new belt.

12. Install the new belt by reversing the steps used to remove it.

Belt installation notes:

• Install only a correct OEM belt. Incorrect belts

may cause problems that effect the performance and/or safety of the tractor.

• Apply a small amount of anti-seize compound

to the engine crankshaft before installing the crankshaft pulley.

• Apply a small amount of thread locking com-

pound such as Loctite 271

(red) to the

threads of the crankshaft bolt.

• Tighten the bolt to a torque of 36-50 ft-lbs. (50-

68 N-m).

• The belt is routed to the left of the steering

shaft, and the fore-most keeper pin goes between the runs of the belt. See Figure 5.59.

Top of crankshaft pulley

Bottom of crankshaft pulley

Figure 5.58

Belt keeper pin Steering shaft

Belt

• Correct routing. See Figure 5.60.

• Tighten the nut that holds the fan and pulley to

the input shaft to a torque of 30-43 ft-lbs (41-58 N-m).

13. Thoroughly test the operation of the drive system and all safety features before returning the tra ctor to service.

Looking forward from under the tractor

Figure 5.59

Front Back

Figure 5.60

HYDRO. DRIVE AND BRAKE SYSTEM

Changing transaxle hydraulic fluid

NOTE: The Hydro-Gear hydrostatic transaxle used in the Cub Cadet 1000 Series tractors typically lasts for

many years of homeowner use without fluid maintenance. The primary reason to change the fluid would be contamination.

NOTE: The ambient temperature should be above 60 deg. f. (15.5 deg. C.) to allow the fluid to drain and fill in

a reasonable amount of time.

! CA UTION! CA UTION

The battery will be removed in this procedure. Review the Operator’s Manual and Chapter 7: Electrical System for important safety information abou t ha nd lin g ba tte r ies be fo re proce e din g.

1. Allow the drive system to cool before starting work on the tractor.

2. Remove the battery and battery tray by following the procedures described in Chapter 4: Body Panels. See Figure 5.61.

3. Locate the drain plug near the bottom of the differential housing of the transaxle.

4. Clean the area around the drain plug, and place a drain pan of at least 1 gallon (4 liters) capacity under the transaxle.

5. Remove the plug using a 1/4” allen wrench, and allo w the fluid to drain.

Figure 5.61

NOTE: If the transaxle does not have a drain plug:

• The fluid may be siphoned out or the transaxle

may be removed from the tractor and drained through the fill port.

Catch tank vent fill port

Figure 5.62

6. Locate the fill port. It is the socket-head cap plug on top of the transaxle casting. It is not the black cap on top of the plastic catch tank.

7. Clean the area around the fill port.

8. Remove the plug using a 1/4” allen wrench. See Figure 5.62.

NOTE: If the transaxle is draining slowly, this will allow

more air to enter the housing, speeding up the draining process.

9. After the transaxle has drained completely, reinstall the drain plug.

LTX Tractors

10. Fill the transaxle with 77 to 80 fluid ounces (2.3 to

2.4 L) of 20W-50 engine oil that has a minimum API classification of SL, and a minimum rating of 55 SUS @ 210 deg. F. (99 deg. C).

11. Purge the transaxle. See Figure 5.63. 11a. Open the bypass valve. 11b. Start the engine, and run it at low RPMs. 11c. Slowly cycle the drive pedal 6 times from full

forward to full reverse, taking about 10 sec onds to complete a stroke.

11d. Close the bypass valve.

Tr a ns m i s s io n r e lea s e r o d: operates bypass valve

(shown released)

11e. Slowly cycle the drive pedal 6 times from full

forward to full reverse, taking about 10 sec onds to complete a stroke.

11f. Turn the engine off. 11g. Check the fluid level, and add fluid if neces-

sary to bring the level within 1-1/4” of the top

of the casting. 11h. Close the bypass valve. See Figure 5.64. 11i. Start the engine, and run it at low RPMs. 11j. Slowly cycle the drive pedal 6 times from full

forward to full reverse, taking about 10 sec

onds to complete a stroke. 11k. Close the bypass valve. 11l. Slowly cycle the drive pedal 6 times from full

forward to full reverse, taking about 10 sec

onds to complete a stroke. 11m.Turn the engine off. 11n. Check the fluid level, and add fluid if necessary to bring the level within 1-1/4” of the top of the casting.

Transmission release rod operates bypass valve

(shown engaged)

Figure 5.63

Figure 5.64

12. Test drive the tractor. If it does not operate at normal speed with no unusual transmission noise, repeat the purging process.

Brakes

HYDRO. DRIVE AND BRAKE SYSTEM

Brake arm

Return spring

Brake yoke

Castle nut Cotter pin

Actuator spring hooks here

NOTE: The brakes may be repaired in the tractor, using

procedures shown on the bench.

1. The brake yoke is located on the right side of the transaxle. See Figure 5.65.

• The heavy actuator spring connects to the top hole

on the brake arm.

• The light return spring draws the brake arm to the

OFF position.

• Remove the cotter pin and loosen or tighten the

castle nut to adjust the brakes. Use a 9/16” wr ench to set a 0.015” (0.381mm) gap.

Figure 5.65

2. There are two main reasons to remove the caliper: to replace the pads, or to free stuck parts.

3. Loosen both brake yoke bolts using a 3/8” wrench. See Figure 5.66.

Figure 5.66

Brake rotor Brake yoke

Installed r-t-n spring fits into groove in spacer

Figure 5.67

4. Slip the return-to-neutral (r-t-n) spring off of the spacer on the front bolt.

5. The yoke and outer pad will separate from the transaxle. See Figure 5.67.

Short r-t-n spring

Grooved spacer

LTX Tractors

6. Inside the brake yoke;

• A steel backing plate fits between the friction pad and the actuator pins.

• The pins fit into holes in the brake yoke housing.

• The brake arm acts as a cam, pushing the pins when it rotates.

• A small compression spring pushes the cam arm away from the pins, helping to release the brake.

7. With the brake yoke removed, the brake rotor floats on a splined brake shaft.

See Figure 5.69.

• The bypass linkage must be removed to take

the rotor off.

• The flat side goes in, the collar faces out.

Brake arm Spring Brake yoke

Actuator pins (2) Backing plate Friction pad

Figure 5.68

Brake pad Brake rotor bypass

arm

• A second brake pad fits into a recess behind

the rotor.

8. Assembly notes:

• If any lubricant is used on the pins or between

the brake shaft and the rotor, apply it VERY sparingly.

• Apply a small amount of thread locking com-

pound such as Loctite 242

TM(blue) to the

threads of the brake yoke bolts.

• Tighten the brake yoke bolts to a torque of 80 to 120 in-lbs. (9 to 14 N-m).

9. Adjust and test the brakes after any work on brake system.

Figure 5.69

Transaxle removal and replacement

HYDRO. DRIVE AND BRAKE SYSTEM

! CA UTION! CA UTION

The battery will be removed in this procedure. Review the Operator’s Manual and Chapter 7: Electrical System for important safety information abou t ha nd lin g ba tte r ies be fo re proce e din g.

1. Remove the mowing deck by following the procedures described in Chapter 8: Cutting Decks and Lift Shaft.

2. Set the park brake to release belt tension.

3. Remove the battery and battery tray, as described in the body work chapter of this manual. See Figure 5.70.

Figure 5.70

Fan Nut

Figure 5.71

4. Remove drive belt from the transaxle pulley. See Figure 5.71.

4a. Remove the nut using a 3/4” wrench. An impact

wrench with a socket will be most effective.

4b. Lift the cooling fan off.

LTX Tractors

4c. Remove the pulley. The belt will clear the belt

keepers on top of the transaxle as the pulley comes up.

5. Loosen, but do not remove the wheel bolts (DoubleD axles) or lug nuts, using a 1/2” wrench or a 3/4” wrench, respectively .

6. Unhook the large return-to-neutral spring from the back of the tractor frame. Leave the other end con nected to the top of the return-to-neutral cam. See Figure 5.73.

See Figure 5.72.

Figure 5.72

NOTE: There is a second, shorter return-to-neutral

spring that stretches between the cam and the grooved spacer on the front mounting bolt of the brake yoke.

7. Release the parking brake.

8. Lift, and safely support the tractor. The rear of the tractor should be high enough to allow the tran saxle to pass under it.

9. Remove the rear wheels. If the tractor has Double-D axles, remove the wheel spacers too. See Figure 5.74.

Large r-t-n spring

Figure 5.73

Figure 5.74

HYDRO. DRIVE AND BRAKE SYSTEM

Reverse safety switch (yellow wire)

Trunnion arm (green wire)

Figure 5.75

Drive control rod Trunnion arm

10. Disconnect the wires from the reverse safety switch. See Figure 5.75.

10a. Unplug the yellow w/black trace wire. 10b. Remove the bolt that holds the green ground

wire using a 3/8” wrench.

11. Disconnect the drive control rod from the trunnion arm of the hydro.

See Figure 5.76.

Spring

Bypass rod

Cotter pin

Figure 5.76

Figure 5.77

bypass arm

12. Disconnect the spring at the end of the bypass rod rod from the bypass arm on the transaxle.

5.77.

NOTE: The closed end of the spring hooks downward into

the rod.

13. Support the transaxle so that it can be lowered out of the tractor in a controlled fashion.

See Figure

LTX Tractors

14. Remove the torque bracket bolts using a 1/2” wrench.

15. Take the nuts off of the T-bolts that hold the transaxle to the frame using a 1/2” wrench. See Figure 5.79.

See Figure 5.78.

Bolts

Torque bracket

Figure 5.78

NOTE: At this point, the brake actuator spring is still

attached to the brake rod from the pedal shaft, and the brake arm on the transaxle.

16. Carefully lower the transaxle out of the tractor. See Figure 5.80.

Figure 5.79

Figure 5.80

Large r-t-n spring

Brake actuator spring

Figure 5.81

Round hole Oblong hole

HYDRO. DRIVE AND BRAKE SYSTEM

17. Move the transaxle forwa r d to make some slack in the brake linkage. Use the slack to unhook the brake spring from the brake arm.

18. Carefully lift the transaxle onto a workbench for drain ing or disassembly as needed.

19. On the bench;

Figure 5.82

Reverse safety switch Trunn ion arm

“T” slot

19a. The top of the reverse safety switch is held

against the trunnion arm by the post on the drive control rod.

NOTE: The post passes through a roun d hole in the switch

plate and an oblong hole in the trunnion arm.

19b. The bottom of the reverse safety switch fits into

a “T” slot in the trunnion arm.

See Figure 5.82.

See Figure 5.83.

Figure 5.83

LTX Tractors

19c. The large return-to-neutral spring can be

unhooked from the return-to-neutral cam. See Figure 5.84.

Large r-t-n spring

19d.Remove the belt keeper from the top of the

transaxle using a phillips head screwdriver. See Figure 5.85.

20. Installation notes: 20a.After repairs are done, and the transmission is

re-filled with fluid, it may be “bench purged” if the technician has a way to drive the input shaft using a 1/2” drill motor.

20b.Check adjustment of the brake before installing

the transaxle.

20c. Position the large return-to-neutral spring on

the return-to-neutral cam before lifting the tran saxle back into the tractor.

20d.Connect both ends of the brake actuator spring

before lifting the transaxle back into the tractor.

Small r-t-n spring

Figure 5.84

Belt keeper

Screw

Figure 5.85

r-t-n cam

20e. Coat the Double-D axle shaft with a high quality grease or anti seize compound before installing the

wheels. 20f. The spring in the bypass linkage hooks downward into the transmission release rod. 20g.Tighten fasteners according to the accompanying torque table. 20h.Fully purge the drive system before operating the tractor. 20i. Operate and test the drive system, brake system, and all safety features before returning the tractor to

service.

HYDRO. DRIVE AND BRAKE SYSTEM

Drive System Torque Specs.

Fastener Torque in-lb. Torque N-m

Seat bolt 150-180 17-20 Lug nut 350-500 41-57 Wheel bolt 160-190 18-22 Fan/pulley nut 360-520 41-59 Tq. bracket bolt 150-180 17-20 Axle T-bolt nuts 150-180 17-20 Brake yoke bolts 80-120 9-14 Pedal shaft straps 150-180 17-20 Belt keeper nut /bolt 150-180 17-20 Idler pulley bolt 150-180 17-20 Tensioner bracket 150-180 17-20

LTX Tractors

CVT DRIVE AND BRAKE SYSTEM

CHAPTER 6: CVT DRIVE AND BRAKE SYSTEM

About this chapter

The drive and brake systems for the Cub Cadet Series 1000 tractor are combined. Two reasons for this:

• The brake on the Series 1000 tractor is supplied with the transaxle.

• The brake pedal applies the brake and disengages the drive system. Both systems share common linkage.

The transaxle used in the Cub Cadet Series 1000 is a relatively simple gearbox containing forward, neutral, and

reverse gears. The variation in speed is all handled by the variable speed pulley system that drives the transaxle.

If the tractor has drive system problems within the warranty period, the servicing Cub Cadet dealer has the fol-

lowing responsibilities:

• Eliminate any external causes for drive system problems before removing the transmission from the tractor.

• External problems would include, but are not limited to: belt, linkage, or brake issues.

• Look for signs of over-use or abuse. Transaxles that fail because of over use or abuse are not warrantable. They are to be repaired or replaced at the customer’s expense.

• If the problem is internal, the transmission is to be replaced under the like-kind exchange policy.

• If a transaxle is replaced under warranty, the original transaxle may be called-back for evaluation by MTD Vendor Recovery Dept.

• Warranty Claims will be denied, returned, or adjusted if the returned transaxle does not meet Cub Cadet’s replacement criteria.

• Dealers are encouraged to open transaxles for inspection, allowing them to identify a problem within the transaxle.

• Beyond warranty, dealers are free to repair transmissions at customer expense.

• If the dealer has questions regarding transaxle replacement, they should call Cub Cadet Ser vice using the dealer only line before proceeding.

About the variable speed drive system.

There are two drive belts in the system. A long drive belt transfers power from the engine crankshaft to the lower sheave of the variable-speed pulley. A shorter belt fits in the upper sheave of the variable speed pulley; transferring power from there to the input pulley on the transaxle.

• The drive control pedal tensions the front drive belt.

• The center partition of the variable speed pulley sep arates the lower (front) belt from the upper (rear) belt.

• As the front belt is tensioned, it is drawn deeper into its sheave. The effective circumference of the driven pulley shrinks.

• As the front belt is drawn deeper into its sheave, the center partition is forced upward, making the upper shave narrower.

• As the upper sheave pinches-down on the rear drive belt, the belt is forced outward in the sheave. The effective circumference of the pulley driving the rear belt grows.

• As the upper and lower sheaves change size, the drive ratio shifts increasing the speed of the rear belt.

• As the sheave that drives the rear belt changes size, the be lt m ust be ke pt un der con stant tension. A tension idler pulley accomplishes this task.

• The clutch/brake pedal automatically de-tensions the front belt when it is applied.

LTX Tractors

Externally repairable drive system problems:

Most of the problems listed in this section will result in a customer complaint of low power or low ground speed. If the tractor is difficult to push, check the brakes.

1. Engine performance:

• If the engine does not turn at the specified RPM, the tractor will not travel at its designed speed. See Figure 6.1.

• If the engine does not produce the specified amount of power, the tractor will not have its designed amount of tractive force.

1a. Find the specified engine RPM for the tractor (

3,375-3,525 RPM for the Cub Cadet Series

1000).

1b. Check the engine with a tachometer to con-

firm that it maintains the specified RPM under normal load.

1c. Correct engine performance problems before trying to diagnose drive system problems.

2. Check the tires: Confirm that the correct size tires are on the tractor. Smaller rear tires will yield lower ground speed. Under-filled tires will put additional load on the drive system.

• LTX 1040 Series has 20” x 8” rear tires.

• LTX 1050 Series has 20” x 10” rear tires.

• SLTX 1050 Series has 22” x 9.5” rear tires.

3. Check the brakes: See Figure 6.2.

3a. The brake linkage applies the brakes and dis-

engages the drive belt. Confirm that both part s of the linkage are moving properly.

• When the brake pedal is released, the front drive belt should be slightly slack.

• The drive and brake linkages are connected in such a way that the pedals will “see-saw”, and it should not be possible to apply drive and clutch/brake pedal at the same time.

Figure 6.1

Figure 6.2

Cub Cadet SLTX1000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CHAPTER 1: INTRODUCTION

Professional Shop Manual intent

Fasteners

Assembly

Description of the 900 series

Model and Serial Numbers

CHAPTER 2: ENGINE RELATED PARTS

Muffler

Fuel tank removal/replacement

Fuel Line

Evaporative (EVAP) emissions system

Roll over valve vent

Steering alignment

CHAPTER 3A: STEERING

Axles

Sector gear and steering pinion gear

Steering shaft and he x bushing

Pivot bar

CHAPTER 3B: ELECTRONIC POWER STEERING

EPS Module

Rubber torsion coupling

EPS motor & gearbox

Troubleshooting the EPS (without the 725-05419 EPS tester)

EPS removal/replacement

CHAPTER 4: BODY PANELS

What is covered by this chapter

Hood components: Headlight removal

Hood components: side vent removal

Hood components: grill removal

Hood components: pivot bracket removal

Seat and Fenders

Dash Panel

CHAPTER 5: HYDRO. DRIVE AND BRAKE SYSTEM

About this chapter

Externally repairable drive system problems

Indications that a transaxle is not warrantable

Brake adjustment

Neutral control adjustment

Linkage: pedal shaft

Pedal shaft assembly removal

Belt control; tensioner and idler pulleys

Drive belt replacement

Changing transaxle hydraulic fluid

Brakes

Transaxle removal and replacement

CHAPTER 6: CVT DRIVE AND BRAKE SYSTEM

About this chapter

About the variable speed drive system.

Externally repairable drive system problems: